Clamp.



D. Swan..-

OLAMP. PPLOATIOH I'ILEJ HAB. 18, 1906.

PATENTED OGT. 23. 1906.

t desired.

-. UNITED s-TATEs; PATENT OFFICE. w f I i DAVID swoPnoFWLLE, NEW JERSEY.

i GLAMP.`

Specificaton of LettersPatent. Appumin fiiea March 1,1908. seria No.806.887.

Patetea o'. as, 1906.

T0 all whom it may cocrn:

Be it known that I, DAVID SwoPE, a citi- 'stretching operation, whereinit is necessary to perforate the hides along their edges in order thatthe toggle-strings may be passed therethrough, by means of which thehide is suitably secured to the frame.

o In a prior patent, No. 790,012, granted to me lMay 16, 1905, I havedescribed and claimed a novel construction of .a clamp whichcan bereadily applied to the hide andl which is so constructed that the pullon the clamp will stretch the hide and more tightly clamp the same. w

It has been found in practice that under certain conditions `when agreat pressure is exerted on the clamp there is a liability, ifcomparatively thin metal is employed, of the sides of the clampspringing or spreading apart, and thus permitting the internal clampingmember to be partially disengaged therefrom, and thereby lessening thestrength of the clamping action. In my present invention I have overcomethis defect caused by the spreading of the sides which sometimes occurs,and to the above end my present invention consists of a novelconstruction of a clamp comprising two clamping members, the sides ofthe outer member each having a slot therein in which the j ournals ofthe ,internal member are seated, said j ournals being provided with alug', 'whereby when the parts are in assembled position there is nopossibility of the sides spreading or bending outwardly under thestrain, and, furthermore, the two clamping members may bereadilyassembled and disassembled when It further consists of a novelconstruction of clamping members in which the sides of the outer memberare provided with slots in which the internal member when in unclampedposition has a ,desired amount of play and when the different membersare in clamped position the j ournals of the internal member engage the-upper ends of the slots in the sides of the outer member.

Itfurther consists of other novel features of construction, all as willbe hereinafter fully set forth. iFigure 1 represents a plan view of aclamp embodying my invention, the same being shown as the parts appearafterbeing stamped from the sheet metal and before the sides andclamping-jaws have been defiected into the proper position. Fig. 2represents a perspective view of the clamp in assembled position,showing a flexible connection in operative position with respectthereto. Fig. 3 represents a side elevation of Figf, Fig. 4 represents aperspective view of another embodiment of my invention. Fig. 5represents a plan view of the internal clamping member shown in Fig. 4.i

Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawings, 1 designates a novel construction of a clampembod 'ng The sides 3 of the outer member are provided| with slots 7,shown as though not necessarly substantially Vertical, in which thejournals 8 of the internal member 4 are adapted to be seated, saidjournals having attheir ends the lugs or bars 9, which are of the samelength or slightly shorter than the slots 7 in the sides 3, whereby theinternal member of the clamp may be readily assembled or disassembledwhenever it is desired, and the internal member will be'permitted tohave a desired amount of Vertical play within the sides 3 of theexternal member 2. The internal member 4 has extending rearwardlytherefrom the finger-piece or rearward extension 10, having an aperture11' therein, through which passes the fiexible connection 12, saidconnection also passing through an aperture 13 in the finger-piece orrearward extension 14 of the outer member 2. In the present instance theflexible connection is shown as passing through the aperture 11 In theembodiment seen in Figs. 4 and 5 I IOC IIO

r than the length of said lugs, and a exible connection engaging saidmembers to olamp the jaws. A

7. A clamp comprsing a member, one end of which forms a'jaw whichextends transversely of'the length of the member and the other end ofwhich is provided With means for en'gaging a flexble connection, saidmember having elongated slots therein substantially parallel with thejaw, and a second member journaled in said slots, one end of said secondmember being movable substantially i'n the direction of the length ofthe first member, the opposite end of which is provided with means forengaging the fiexible connection, said second'member having relativemovement away from said first member -during the clampi'ng action. 'Q

8. A'clamp comprising two members, each of said members having arearward extension of different lengths in the two members' and providedwith. an eye therein and each having a forward extension terminating ina jaw, said jaws deflecting toward each other, one of said membersvhavin "elongated slots therein substantially paral el with its jaw, theother of said members having journals adapted to be seated in said slotsand engage the upper ends thereof when in clamped position,

`means for preventing the disengagement' of said journals With'saidslotsand a 4flexible connection passing through the eye in said longerextension and secnred at its extremity to the eye in said shorterextension.

DAVID sWoPE.

Witnesses: I a a E. HAYWARD FAmBANKs, JOHN A. WIEDERSHEIM.

